A compound represented by the general formula (I), a racemate thereof, or a salt thereof. (In the general formula (I), X represents an oxygen atom, a nitrogen atom, a sulfur atom or a carbon atom, and R1 represents R1a-Y-R1b (R1a and R1b are saturated or unsaturated fats, respectively). Group represents a hydrocarbon group, an aromatic group, a heterocyclic group, or a group in which these groups are combined, Y represents an oxygen atom, a nitrogen atom, a sulfur atom, or a carbon atom.), And R2 is saturated or unsaturated, respectively. It represents a saturated aliphatic hydrocarbon group, and R3 represents choline, ethanolamine, inositol or serine.) [Selection diagram] FIG. 一般式（Ｉ）で示される化合物、そのラセミ体又はそれらの塩。【化１】（一般式（Ｉ）中、Ｘは、酸素原子、窒素原子、硫黄原子又は炭素原子を表し、Ｒ１は、Ｒ１ａ－Ｙ－Ｒ１ｂ（Ｒ１ａ及びＲ１ｂは、それぞれ飽和若しくは不飽和の脂肪族炭化水素基、芳香族基、複素環基、又はこれらを組み合わせた基を表し、Ｙは、酸素原子、窒素原子、硫黄原子又は炭素原子を表す。）を表し、Ｒ２は、それぞれ飽和若しくは不飽和の脂肪族炭化水素基を表し、Ｒ３は、コリン、エタノールアミン、イノシトール又はセリンを表す。）【選択図】図１
